/* vi: set sw=4 ts=4: */
/*
- * iprule.c "ip rule".
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
*
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* Changes:
*
- * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
+ * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
* initially integrated into busybox by Bernhard Reutner-Fischer
*/
else if (r->rtm_family == AF_IPX)
host_len = 80;
*/
- if (tb[RTA_PRIORITY])
- printf("%u:\t", *(unsigned*)RTA_DATA(tb[RTA_PRIORITY]));
- else
- printf("0:\t");
-
+ printf("%u:\t", tb[RTA_PRIORITY] ?
+ *(unsigned*)RTA_DATA(tb[RTA_PRIORITY])
+ : 0);
printf("from ");
if (tb[RTA_SRC]) {
if (r->rtm_src_len != host_len) {
printf("%s/%u", rt_addr_n2a(r->rtm_family,
- RTA_DATA(tb[RTA_SRC]),
- abuf, sizeof(abuf)),
+ RTA_DATA(tb[RTA_SRC]),
+ abuf, sizeof(abuf)),
r->rtm_src_len
- );
+ );
} else {
fputs(format_host(r->rtm_family,
- RTA_PAYLOAD(tb[RTA_SRC]),
- RTA_DATA(tb[RTA_SRC]),
- abuf, sizeof(abuf)), stdout);
+ RTA_PAYLOAD(tb[RTA_SRC]),
+ RTA_DATA(tb[RTA_SRC]),
+ abuf, sizeof(abuf)),
+ stdout
+ );
}
} else if (r->rtm_src_len) {
printf("0/%d", r->rtm_src_len);
bool table_ok = 0;
struct rtnl_handle rth;
struct {
- struct nlmsghdr n;
- struct rtmsg r;
- char buf[1024];
+ struct nlmsghdr n;
+ struct rtmsg r;
+ char buf[1024];
} req;
smalluint key;
while (*argv) {
key = index_in_substrings(keywords, *argv) + 1;
if (key == 0) /* no match found in keywords array, bail out. */
- bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name);
+ invarg(*argv, applet_name);
if (key == ARG_from) {
inet_prefix dst;
NEXT_ARG();
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
} else if (key == ARG_preference ||
key == ARG_order ||
- key == ARG_priority) {
+ key == ARG_priority
+ ) {
uint32_t pref;
NEXT_ARG();
pref = get_u32(*argv, "preference");
invarg(*argv, "realms");
addattr32(&req.n, sizeof(req), RTA_FLOW, realm);
} else if (key == ARG_table ||
- key == ARG_lookup) {
+ key == ARG_lookup
+ ) {
uint32_t tid;
NEXT_ARG();
if (rtnl_rttable_a2n(&tid, *argv))
req.r.rtm_table = tid;
table_ok = 1;
} else if (key == ARG_dev ||
- key == ARG_iif) {
+ key == ARG_iif
+ ) {
NEXT_ARG();
addattr_l(&req.n, sizeof(req), RTA_IIF, *argv, strlen(*argv)+1);
} else if (key == ARG_nat ||
- key == ARG_map_to) {
+ key == ARG_map_to
+ ) {
NEXT_ARG();
addattr32(&req.n, sizeof(req), RTA_GATEWAY, get_addr32(*argv));
req.r.rtm_type = RTN_NAT;
}
/* Return value becomes exitcode. It's okay to not return at all */
-int do_iprule(char **argv)
+int FAST_FUNC do_iprule(char **argv)
{
static const char ip_rule_commands[] ALIGN1 =
"add\0""delete\0""list\0""show\0";
- int cmd = 2; /* list */
-
- if (!*argv)
- return iprule_list(argv);
-
- cmd = index_in_substrings(ip_rule_commands, *argv);
- switch (cmd) {
- case 0: /* add */
- cmd = RTM_NEWRULE;
- break;
- case 1: /* delete */
- cmd = RTM_DELRULE;
- break;
- case 2: /* list */
- case 3: /* show */
- return iprule_list(argv+1);
- break;
- default:
- bb_error_msg_and_die("unknown command %s", *argv);
+ if (*argv) {
+ int cmd = index_in_substrings(ip_rule_commands, *argv);
+ if (cmd < 0)
+ invarg(*argv, applet_name);
+ argv++;
+ if (cmd < 2)
+ return iprule_modify((cmd == 0) ? RTM_NEWRULE : RTM_DELRULE, argv);
}
- return iprule_modify(cmd, argv+1);
+ return iprule_list(argv);
}